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Nostalgic Trainer - 5/13/2009 6:43 PM   
Fyg Leaf



Posts: 36
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Last Login: 11/1/2009
From: Dayton, OH, USA
Status: offline 		I'm a 70's and 80's pattern and TOC designer that is just getting back into the hobby after a 20-year hiatus. I've designed and am scratch building a trainer for the kids of some of my coworkers and for my grandchildren when they get old enough. The trainer is a little under 500 square inches, has rudder-elevator-throttle only, and will be powered by a four-stroke 30.

If there is any interest, I can post a 3-view drawing now, some construction photos as it progresses, and eventually a flight test report. If not, that's fine. I've already had fun breaking out the drafting tools and creating the design. The construction has been enjoyable and nostalgic, both the successes and the hiccups. And I know flying it will be a low stress pleasure.

Ken

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RE: Nostalgic Trainer - 5/13/2009 8:36 PM   
FlyerInOKC


 

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From: Oklahoma City, OK, USA
Status: offline 		I for one would love to see it!

Mike

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RE: Nostalgic Trainer - 5/13/2009 8:40 PM   
Masonhornet



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I'd love to see it as well..



.

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RE: Nostalgic Trainer - 5/14/2009 12:19 AM   
Fyg Leaf



Posts: 36
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From: Dayton, OH, USA
Status: offline 		Mike and Masonhornet,

Here's the 3-view. It's called the "Relic" both for its vintage appearance and for my status as an aging baby boomer. The paint scheme is very tentative. It's one of about five under consideration.

Framing is nearly finished. Covering is a week or two away. A 4-channel radio and an O.S. FS-30 have been procured. The engine has been broken in on a test stand.

I'll try to take and post some pre-covering photos of the airframe in the next few days.


Thanks for your interest,
Ken

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RE: Nostalgic Trainer - 5/15/2009 1:16 AM   
Fyg Leaf



Posts: 36
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From: Dayton, OH, USA
Status: offline 		Nice evening here in Ohio, so I shot some photos of the mostly completed structure. Yes, I know the grass needs mowing.

I covered the rudder last night to see if my sealing iron still worked and if I remembered how to Monokote. I do, but mostly what I remembered is that it's a task I don't enjoy.

The second shot shows a little front end detail. The tank is one of a pair of 4-oz. tanks that Tower sells for a twin ARF. You can also see the battery tray and how some shock absorption is built in the way the wheel is mounted. The down thrust in the motor mount rails is visible. There is a 2 deg. right thrust also.

The hole in the cowl in the third photo is so you can get a finger in to choke the engine for starting. The FS-40 has a choke attachment kit, but the 30 doesn't. The little plate above and behind the wheel is a switch mount. And fortunately, you can't see what an unspectacular Monokote job the rudder has.

Not much to see in the final shot except that a couple of nylon bolts hold the wing on.

I've got schedule conflicts for the next week and a half that will keep me from working on it, but final sanding and covering will begin as soon as I'm free. Wish me luck.

Ken



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RE: Nostalgic Trainer - 5/15/2009 8:47 AM   
Masonhornet



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Wow, nice work..! I like the wheel location.. are you planning to install outriggers or just leave it as-is..?

.

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RE: Nostalgic Trainer - 5/18/2009 2:27 AM   
Fyg Leaf



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From: Dayton, OH, USA
Status: offline 		I'm going to try it as is with the just the tail skids.  If it's "tippy" I'll add outriggers.

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RE: Nostalgic Trainer - 6/8/2009 3:20 AM   
Fyg Leaf



Posts: 36
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From: Dayton, OH, USA
Status: offline 		Covering finished today.  Monokote and wingtips still aren't made for each other.  Paint and trim this week, weather permitting.  Maybe some ready to fly pictures this weekend.

Ken

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RE: Nostalgic Trainer - 6/13/2009 2:21 AM   
Fyg Leaf



Posts: 36
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From: Dayton, OH, USA
Status: offline 		Weather hasn't permitted much at all this week.  Only primer on so far. 

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RE: Nostalgic Trainer - 6/16/2009 8:13 PM   
Fyg Leaf



Posts: 36
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From: Dayton, OH, USA
Status: offline 		The wing is done except for AMA number.  Fuselage needs one more coat, then trim.  But I am losing the rest of this week and the coming weekend to business and family obligations.  So probably no ready-to-fly photos until the weekend of the 27th.

Ken

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RE: Nostalgic Trainer - 6/26/2009 2:02 PM   
Fyg Leaf



Posts: 36
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Joined: 8/19/2004
Last Login: 11/1/2009
From: Dayton, OH, USA
Status: offline 		Way too much business travel lately! Covering, painting, trim tape, etc., are all finally finished. Engine and RC equipment will go in tonight and tomorrow. Our flying field is on the Air Force base and is currently closed due to an activity at the site, so no first flight this weekend. I should be able to post some photos of the completed model Saturday or Sunday.

Ken

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RE: Nostalgic Trainer - 6/27/2009 8:56 PM   
Fyg Leaf



Posts: 36
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From: Dayton, OH, USA
Status: offline 		Ready to go! Almost. It was a little tippy in the breeze as I took these pictures, so I think I'll add outriggers at the second dihedral break before I test hop it.

The first photo gives you an overall view of the color scheme. Transparent blue Monokote, yellow LustreKote, white trim Monokote, and 1/8" black trim tape. The vinyl graphics on the wing were ordered online form a sign lettering outfit. Time will tell if they stand up to glow fuel exhaust.

Side view is next. You can see all the servo wires hanging down inside the fuselage. The fuel tubing by the wheel comes down from the breather nipple on the back of the crankcase. I had to route it all the way to the downstream side of the wheel opening so it wouldn't pollute the inside of the fuselage with oil.

The next shot shows the other side. The pushrods are 3/16 dia. carbon fiber. The antenna runs through a nylon tube inside the upper corner of the fuselage and exits next to the rudder. It's very hard to see in the photos, but the wing lettering is outlined in yellow. That's the way it was ordered from a zillion fonts, colors, and sizes available. Comes on a very easy to use transfer sheet. A little pricey, but so much easier than individual letters and numbers.

Next one has the access-for-choking hole visible. Down-facing carburetor intake is a pain. Prop is a 9-6, only because they were out of 9-5's and the 10-4 wood one I've got doesn't clear the slots in the spinner. Didn't want to file it open and mess up the balance.

Not sure why I included the last shot. It mainly only shows that the fin is off vertical a hair. Another fond memory from the good old days... everything fits perfect until you glue it.

Our flying field is closed this weekend, so I'll add the outriggers and give it a go sometime in the next week. I'll post some comments on how well it flew or on how small the pieces were.

Ken



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RE: Nostalgic Trainer - 6/28/2009 1:52 AM   
BMatthews



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From: Burnaby, BC, CANADA
Status: offline 		Wonderful work and thanks for sharing this with the community.

It'll be a flyer for sure and should have a really nice behaviour for beginners. But a model for beginning BUILDERS it certainly is not. Lots of sticks! That aspect draws me in with a smile thanks to my free flight background. Sticks don't scare me none, in fact I like them. But a lot of folks without much building time would be put off by this and that would be a shame since it sure does seem like it's a natural for flying. That and the tapered wing would do the same unless there's a laser cut semi kit in the planning.

But I digress and I'm nitpicking..... You did a great job of coming up with a pleasant looking model that I have no doubts will serve well as a trainer and a "here try this" model for visitors and relatives. And I'll just bet it put more than a few smiles on your face to build this lovely bit of craftsmanship.

_____________________________

Witty saying to be plagarized shortly.....

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RE: Nostalgic Trainer - 6/29/2009 4:07 PM   
Fyg Leaf



Posts: 36
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Joined: 8/19/2004
Last Login: 11/1/2009
From: Dayton, OH, USA
Status: offline 		Ran the engine in the plane yesterday evening. Got the throttle trim set right, verified that there were no problems with the fuel tank and plumbing, and dialed in the carburetor settings for a reliable slow idle and good transition between throttle settings. Nothing vibrated loose and the radio kept working. Those are still good things, right?

I also remembered to weigh it. Came in at 3 lbs 4 oz. I think that's reasonable for 480 square inches.

I may have an opportunity to make the maiden flight some evening this week, and if not, then on the Friday holiday.

Thanks for your comments Mr. Matthews. No, it's definitely not a beginner's building project. But if it gets someone interested because they were able to fly it easily, then they can start with an ARF or a simpler kit and become a part of a great hobby.

Ken

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RE: Nostalgic Trainer - 7/3/2009 12:55 AM   
Fyg Leaf



Posts: 36
Score: 100
Joined: 8/19/2004
Last Login: 11/1/2009
From: Dayton, OH, USA
Status: offline 		Got in two flights this evening before being chased by rain.

It flies great! Very responsive, but not touchy. Very solid in the pitch axis, although it needed a little down trim. It will cruise around all day at 1/3 throttle. Adding power allows loops, immelmans, wing overs, etc. It's not real happy to complete a roll, but that was expectable with the polyhedral and the flat bottom airfoil. The engine ran perfect. Started on first flip both times, idled beautifully, and ramped up instantly when asked.

I'm glad I added the outriggers. It likes to lean over in a crosswind on the ground, but the tail skids and outriggers keep any wing or tail tip from scraping the ground.

The wind came up during the second flight as a storm neared. The landing was an adventure, but control was excellent and quick and dropping wing tips were very easy to pick up. Sudden sink was easliy arrested also.

I'll have to reduce rudder travel a little to put it in trainer mode, but for now it's a blast just the way it is. All in all, a smashing success!

No inflight photos because I had the field all to myself and I wasn't about to put the transmitter down to take a picture. Maybe next time if my son-in-law comes out with me.

Thanks for your interest while it was being built.

Ken

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RE: Nostalgic Trainer - 7/3/2009 1:11 PM  1 votes
aerowoof


 

Posts: 2542
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From: pembroke, NH, USA
Status: offline 		Nice ,reminds me of the wedgy

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RE: Nostalgic Trainer - 7/7/2009 10:38 PM   
Fyg Leaf



Posts: 36
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Joined: 8/19/2004
Last Login: 11/1/2009
From: Dayton, OH, USA
Status: offline 		I knew Leon Shulman when I was a kid in New Jersey. Reminding someone of one of his designs is an honor.

The son-in-law accompanied me to the flying field yesterday evening, so here are a few flight shots.

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RE: Nostalgic Trainer - 7/8/2009 10:57 PM   
aerowoof


 

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Status: offline 		is that wpafb in the background?

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RE: Nostalgic Trainer - 7/9/2009 2:01 PM   
Fyg Leaf



Posts: 36
Score: 100
Joined: 8/19/2004
Last Login: 11/1/2009
From: Dayton, OH, USA
Status: offline 		Yep, and that's the newest wing of the Air Force Museum in the first photo.

Ken

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RE: Nostalgic Trainer - 7/9/2009 5:26 PM   
aerowoof


 

Posts: 2542
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From: pembroke, NH, USA
Status: offline 		Thought it was.last time I was there was 1984.

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